LOS ANGELES (AP) -- The Catholic school drama "Doubt" led contenders Thursday for the Screen Actors Guild Awards with five nominations, including honors for Meryl Streep, Philip Seymour Hoffman, Amy Adams and Viola Davis.
The late Heath Ledger also earned a supporting-actor nomination, whose maniacal turn as the Joker in "The Dark Knight" has made him an Academy Awards front-runner. The Batman blockbuster also had a nomination for best stunt ensemble.
Streep has a lead-actress nomination, while Hoffman, Adams and Davis are competing in supporting categories for "Doubt," a war-of-wills tale between an old-school nun and a progressive priest.
"Doubt" also has a nomination for overall cast performance, along with the romantic fantasy "The Curious Case of Benjamin Button," the Richard Nixon saga "Frost/Nixon," the gay-rights drama "Milk" and the poor-boy-makes-good tale "Slumdog Millionaire."
Kate Winslet grabbed two nominations, best actress for the domestic drama "Revolutionary Road" and supporting actress for the Holocaust-themed story "The Reader."
The 15th annual SAG Awards will air live on TNT and TBS Jan. 25, four weeks before the Academy Awards.
Last January's SAG ceremony took place during a writers' strike that affected other Hollywood honors, including the Golden Globes, which were canceled. The guild awards come amid fresh labor strife, with SAG leaders now threatening a strike as negotiations with producers over a new actors contract have stalled.
SAG Awards recipients often go on to win Academy Awards. Some years, all four of the top SAG winners later take home Oscars for the same roles, though last year, the guild went only two-for-four.
Julie Christie won best actress at SAG for "Away From Her" while the Oscar went to Marion Cotillard for "La Vie En Rose." Ruby Dee earned the supporting-actress honor from SAG for "American Gangster," but Tilda Swinton won the Oscar for "Michael Clayton."
Film and TV nominees were chosen by two groups of 2,100 people randomly chosen from the guild's 120,000 members. The guild's full membership is eligible to vote for winners.
The show will include the guild's life-achievement award for James Earl Jones.